Improvement in blowing apparatus



2 SheetsSheet 1.

- P. W. MAGKE'NZIE.

BLOWING APPARATUS.

Patented Oct. 25

2 Sheets-Sheet 2.

P. W. MACKENZIE.

BLOWING APPARATUS.

No. 44,809. Patented Oct. 25,1864.

Wiuefl/ y' Invent/0;

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UNITED STATES PAT NT Omucn.

PHILIP W. MACKENZIE, OF" JERSEY -GITY,-NEWJERSEY.

,IMPRZOVIEYMENT IN BLOWING APPARATUS.

Specification forming part of Letters Patent No. 44,809, dated October 25, 1864.

Other Purposes; and I do hereby declare the following to be a full, clear, and exact description thereof, reference being had tothe accompanying drawings, and to the letters of reference marked thereon, in which- Figure 1 is a vertical longitudinal section of the machine. Fig. 2 is a side view of the same,

and Fig. 3 is a horizontal longitudinal section through the line y .y.

My invention consists of an imp'rovementin the arrangement of the bearings and shaft of the revolving drum and fans of a machine for blowing blastsof air, in the manner hereinafter more fully described.

A is the frame which supports and contains the apparatus. B are the fans, supported by the axle or shaft 0 and C, and caused to re- \oive' by the revolution of the drum D. At B the fans are shown (in red lines) in another position. One of said fans 3 may be keyed or otherwise fastened to the shaft or axle C, so as to cause the said shaft to revolve inits bearings at the points designated by the letter 0. The other fans are loosely attached to the shaft in order that by their oscillation they may adaptthemselves to the continuous cKauge of angle at which they pass through the drum D. One of the objects of this arrangement is to enable the attendant, when the machine is run continuously dayand night,

to oil the'bearings. If the fans were permit- .ted to revolve on the shaft 0 instead of compellin g the shaft to revolve in its bearin gs, the oil would have to be applied within the, ma-

--chine, and could not be applied without stopping it 5 but by this arrangement all the fricslight and requires no application of oil, or only at long intervals.

E is the cylindrical packing through which the arms or fans of the blower pass. F is the chamber through which the air received at the opening G is conducted to the dischargingspout H, and thence to the furnace, or Whereever the blast is required. 1 are the arms or frame-work by which the drum D is connected with its axle J. The axle J is hollow, and of such size as to surround and inclose within it the axle or shaft 0 of the fans B. The axle J revolves within the hub or bearings K, which said hub or bearings are stationary and are secured to the frame A of the machine. To

drum D are in moti0n,the fans B of the blower to gradually project beyond the circumference of the drum D, and then to gradually recede,

so as to conform accurately to the air-chamber F, and thus to conduct all the air within the air-chamber F to the spout K and discharge it therefrom. I

Having thus fully described my invention, what I claim, and desire to secure'byLetters Patent, is-- The combination of the hollow axle J and the straightshaft O with the fans B and the drum D, substantially as and for the purpose set forth.

P. W. MACKENZIE.

Witnesses:

D. (J. BIRDSALL, JAMES T. GRAHAM. 

